How to import nucleotide sequences [refseq() or DNAStringSet] using qiime2R

[lingvv]

Good day!
May I know how do I create a phyloseq object with DNAStringSet using qiime2R as shown as below?
Your inputs are much appreciated!

ps
#> phyloseq-class experiment-level object
#> otu_table()   OTU Table:         [ 2432 taxa and 18 samples ]
#> sample_data() Sample Data:       [ 18 samples by 11 sample variables ]
#> tax_table()   Taxonomy Table:    [ 2432 taxa by 7 taxonomic ranks ]
#> phy_tree()    Phylogenetic Tree: [ 2432 tips and 2431 internal nodes ]
#> refseq()      DNAStringSet:      [ 2432 reference sequences ]